Rangeland Ecology & Management

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Smoke and Ash Effects on Seedling Emergence from Germinable Soil Seed Bank in Fescue Prairie
Author
Ren, L.
Bai, Y.
Publisher
Society for Range Management
Publication Year
2016
Body

Seedling recruitment plays a crucial role in recovering plant communities after disturbance. As a natural disturbance, fire canmediate species composition in fescue prairie. However, little was known about the effects of important fire cues on seedling recruitment in fescue prairie. Soil seed bank samples were taken fromthe top 5 cm of the soil profile and separated into litter, 0- to 1-cm, and 1- to 5-cm layers. Seedlings emerging from soil seed banks incubated in the greenhouse were examined after applying smoke, ash, and smoke plus ash in 2013 and 2014, to assess their effects on the density, richness, and composition of seedlings emerging from the soil seed bank in fescue prairie. Smoke plus ash significantly increased the number of Artemisia ludoviciana Nutt. seedlings emerging from 0- to 1-cm soil layer and Conyza canadensis (L.) Cronquist seedlings emerging fromthe litter layer (P < 0.05), while ash significantly increased the number of Artemisia frigida Willd. seedlings emerging from 0- to 1-cm soil layer (P < 0.05). Densities of total seedlings emerging from the 0- to 1-cm soil layer were increased by smoke plus ash in 2013 and by ash in 2014 (P < 0.05). Smoke plus ash and ash alone had more prominent effects on seedling density and richness of native forbs. Species composition was altered by ash in the 0- to 1-cm, 0- to 5- cm, and all layers combined in 2013 (P < 0.05). Direct fire cues appear to stimulate recruitment of some species, especially native forbs, contributing to potential changes in species composition of fescue prairie. © 2016 The Society for Range Management. Published by Elsevier Inc. All rights reserved. The Rangeland Ecology & Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.

Language
en
Resource Type
Text
Document Type
Journal Issue/Article
Digital Object Identifier (DOI)
10.1016/j.rama.2016.07.002
Additional Information
Ren, L., & Bai, Y. (2016). Smoke and Ash Effects on Seedling Emergence from Germinable Soil Seed Bank in Fescue Prairie. Rangeland Ecology & Management, 69(6), 499–507.
IISN
1550-7424
OAI Identifier
oai:repository.arizona.edu:10150/662757
Journal Volume
Rangeland Ecology & Management
Journal Number
69
Journal Pages
6
Journal Name
Rangeland Ecology & Management
Keywords
fire cues
restoration
seedling density
species composition
species richness